scripts/Makefile.modbuiltin

   1 # SPDX-License-Identifier: GPL-2.0
   2 # ==========================================================================
   3 # Generating modules.builtin
   4 # ==========================================================================
   5
   6 src := $(obj)
   7
   8 PHONY := __modbuiltin
   9 __modbuiltin:
  10
  11 -include include/config/auto.conf
  12 # tristate.conf sets tristate variables to uppercase 'Y' or 'M'
  13 # That way, we get the list of built-in modules in obj-Y
  14 -include include/config/tristate.conf
  15
  16 include scripts/Kbuild.include
  17
  18 ifneq ($(KBUILD_SRC),)
  19 # Create output directory if not already present
  20 _dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
  21 endif
  22
  23 # The filename Kbuild has precedence over Makefile
  24 kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
  25 kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile)
  26 include $(kbuild-file)
  27
  28 include scripts/Makefile.lib
  29 __subdir-Y     := $(patsubst %/,%,$(filter %/, $(obj-Y)))
  30 subdir-Y       += $(__subdir-Y)
  31 subdir-ym      := $(sort $(subdir-y) $(subdir-Y) $(subdir-m))
  32 subdir-ym      := $(addprefix $(obj)/,$(subdir-ym))
  33 obj-Y          := $(addprefix $(obj)/,$(obj-Y))
  34
  35 modbuiltin-subdirs := $(patsubst %,%/modules.builtin, $(subdir-ym))
  36 modbuiltin-mods    := $(filter %.ko, $(obj-Y:.o=.ko))
  37 modbuiltin-target  := $(obj)/modules.builtin
  38
  39 __modbuiltin: $(modbuiltin-target) $(subdir-ym)
  40         @:
  41
  42 $(modbuiltin-target): $(subdir-ym) FORCE
  43         $(Q)(for m in $(modbuiltin-mods); do echo kernel/$$m; done;     \
  44         cat /dev/null $(modbuiltin-subdirs)) > $@
  45
  46 PHONY += FORCE
  47
  48 FORCE:
  49
  50 # Descending
  51 # ---------------------------------------------------------------------------
  52
  53 PHONY += $(subdir-ym)
  54 $(subdir-ym):
  55         $(Q)$(MAKE) $(modbuiltin)=$@
  56
  57
  58 # Declare the contents of the .PHONY variable as phony.  We keep that
  59 # information in a variable se we can use it in if_changed and friends.
  60
  61 .PHONY: $(PHONY)